71985283 has 2 divisors, whose sum is σ = 71985284. Its totient is φ = 71985282.

The previous prime is 71985257. The next prime is 71985323. The reversal of 71985283 is 38258917.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 71985283 - 2⁹ = 71984771 is a prime.

It is not a weakly prime, because it can be changed into another prime (71985223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35992641 + 35992642.

It is an arithmetic number, because the mean of its divisors is an integer number (35992642).

Almost surely, 2^71985283 is an apocalyptic number.

71985283 is a deficient number, since it is larger than the sum of its proper divisors (1).

71985283 is an equidigital number, since it uses as much as digits as its factorization.

71985283 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120960, while the sum is 43.

The square root of 71985283 is about 8484.4141223776. The cubic root of 71985283 is about 415.9884176848.

The spelling of 71985283 in words is "seventy-one million, nine hundred eighty-five thousand, two hundred eighty-three".